WEBMeru. Look up Meru or mēru in Wiktionary, the free dictionary. Meru may refer to: Geography. Kenya. Meru, Kenya, city in Meru County in the republic of Kenya. Meru County, one of Kenya's 47 counties that was created by the 2009 merger of 3 districts: Meru Central District. Meru North District. Meru South District.